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onsemi MC74AC04MEL
- Part No.:
- MC74AC04MEL
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- -
- Datasheet:
-
MC74AC04MEL.pdf
- Description:
- IC INVERTER HEX TTL 14SOEIAJ
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
MC74AC04MEL from onsemi is a hex inverter logic IC in SOEIAJ-14 package, delivering 24 mA output drive per channel at 5.0 V supply, with propagation delay as low as 4.0 ns (tPHL, VCC = 5.0 V), and operating across −40°C to +85°C ambient temperature. It serves as a level-shifting and signal-inverting buffer in digital control subsystems of industrial PLCs and embedded microcontroller interfaces.
For engineers reviewing the MC74AC04MEL datasheet, pinout, applications, or equivalent options, key selection criteria include guaranteed 24 mA sink/source capability, AC-series input thresholds (VIH = 2.1 V min @ VCC = 3.0 V), SOEIAJ-14 footprint compatibility, and −40°C to +85°C industrial temperature rating.
Technical Context
The MC74AC04MEL implements six independent CMOS inverters in a single monolithic die, using advanced AC-series silicon optimized for high-speed, low-noise operation with rail-to-rail output swing. Its input structure accepts TTL- and CMOS-compatible logic levels but is not TTL-input compatible - distinct from the MC74ACT04 variant.
It operates over a 2.0–6.0 V supply range, supports 50 pF capacitive loads, and exhibits typical power dissipation capacitance of 30 pF. Input leakage remains ≤ ±1.0 µA across temperature, and dynamic output current capability reaches ±75 mA under pulsed conditions (VOLD = 1.65 V max, VOHD = 3.85 V min).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Hex inverter (6 independent NOT gates) |
| Supply Voltage Range | 2.0 V to 6.0 V - enables direct interface with 3.3 V and 5.0 V logic domains |
| Output Drive (IOL/IOH) | ±24 mA - sufficient to directly drive LEDs, small MOSFET gates, or multiple 74AC inputs |
| Propagation Delay (tPHL/tPLH) | 4.0 ns / 4.5 ns @ VCC = 5.0 V, CL = 50 pF - supports >100 MHz toggle rates in short-line applications |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade PCB deployment without derating |
| Input Threshold (VIH/VIL) | 2.1 V / 0.9 V @ VCC = 3.0 V - ensures noise margin >0.4 V in 3.3 V systems |
| Quiescent ICC | ≤ 40 µA @ VCC = 5.5 V - negligible static power impact in battery-backed or low-power standby modes |
Pinout & Package
MC74AC04MEL uses the SOEIAJ-14 (JEDEC MS-012) surface-mount package (Case 965), 10.2 mm × 5.3 mm body, 1.27 mm pitch, with gull-wing leads. Pin 1 is marked by a beveled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Input (A1–A6) | CMOS-compatible logic inputs; VIH ≥ 2.1 V @ 3.0 V supply ensures robust noise immunity |
| 2, 4, 6, 10, 12, 14 | Output (Y1–Y6) | Inverted outputs capable of sourcing/sinking 24 mA continuously; rail-to-rail swing |
| 7 | GND | Digital ground reference; must be low-impedance connection to minimize switching noise coupling |
| 14 | VCC | Positive supply rail; decoupling capacitor (0.1 µF ceramic) required within 5 mm of this pin |
Key Features
| Feature | Design Value |
|---|---|
| High-Speed AC Logic | 4.0 ns typical propagation delay enables use in clock distribution and fast control loops |
| 24 mA Output Drive | Eliminates need for external buffer stages when driving moderate capacitive or resistive loads |
| Wide Supply Range (2.0–6.0 V) | Supports mixed-voltage system integration without level translators |
| Industrial Temperature Range | Validated operation from −40°C to +85°C ensures reliability in uncontrolled environments |
| Pb-Free SOEIAJ-14 Package | RoHS-compliant lead finish; compatible with standard reflow profiles (J-STD-020) |
Applications
| Industrial Sensor Interface | Microcontroller I/O Expansion |
|---|---|
Use Scenario: Inverting analog comparator outputs or open-collector sensor signals before routing to a PLC input module. IC Role / Device Role / Timing Role: Signal polarity correction and fanout buffering for 6 independent sensor channels. Use Value: Eliminates discrete transistor inverters; 24 mA drive ensures reliable logic-level translation into optocoupler inputs. |
Use Scenario: Expanding GPIO count on an MCU with limited native inverting capability, e.g., driving active-low reset lines or enable signals. IC Role / Device Role / Timing Role: Dedicated logic inversion resource with deterministic 4 ns delay, decoupled from MCU firmware timing. Use Value: Reduces software overhead and interrupt latency; rail-to-rail outputs guarantee clean transitions into 74AC/ACT loads. |
| Legacy Bus Signal Conditioning | Power Sequencing Control |
Use Scenario: Re-timing and inverting address strobes or chip-select signals in legacy ISA or parallel bus designs. IC Role / Device Role / Timing Role: Glue logic element synchronizing asynchronous control signals between mismatched bus agents. Use Value: Propagation delay variation <1 ns across temperature ensures setup/hold timing margins remain intact. |
Use Scenario: Generating complementary enable/disable signals for multi-rail DC-DC converters in FPGA or ASIC power-up sequences. IC Role / Device Role / Timing Role: Deterministic inverter stage ensuring precise temporal relationship between primary and auxiliary supply enables. Use Value: Guaranteed 24 mA drive sustains clean edges into gate capacitance of high-side PMOS FETs used in sequencing circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC74AC04DR2G | Same AC-series logic, identical electrical specs, but in SOIC-14 (Case 751A) instead of SOEIAJ-14 | Larger footprint (8.75 mm × 4.0 mm vs. 10.2 mm × 5.3 mm); 1.27 mm pitch retained, but body width differs | Select when board layout uses standard SOIC-14 land pattern and tape-and-reel delivery is preferred |
| SN74AC04PWR | Texas Instruments part; matches AC-series VCC range, drive, and speed, but has higher max ICC (100 µA vs. 40 µA) and different input threshold tolerances | Not Pb-free by default; requires explicit ordering of 'G' suffix for RoHS compliance | Choose only if TI's supply chain alignment or qualification history better fits OEM program requirements |
Compared with MC74AC04MEL, MC74AC04DR2G offers identical functionality in a more widely adopted SOIC package but requires PCB footprint change, while SN74AC04PWR provides second-source assurance with minor quiescent current and compliance trade-offs.
Availability
MC74AC04MEL is available at Aetrix Electronics and suitable for industrial automation, embedded control, and power management applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MC74AC04MEL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The MC74AC04MEL belongs to the 74AC logic family, designed for high-speed, low-power digital interfacing in industrial and embedded systems where reliability across wide temperature and voltage ranges is critical.
FAQ
What is the maximum operating supply voltage for MC74AC04MEL?
The MC74AC04MEL supports a DC supply voltage range of −0.5 V to +7.0 V referenced to GND, with recommended operation from 2.0 V to 6.0 V. Operation above 6.0 V is outside the recommended conditions and may reduce device reliability over time, though absolute maximum rating allows brief exposure up to 7.0 V.
Does MC74AC04MEL support TTL-level inputs?
No, MC74AC04MEL does not support TTL-level inputs. It belongs to the 74AC family and features CMOS-compatible input thresholds (e.g., VIH = 2.1 V min @ VCC = 3.0 V). For TTL-compatible inputs, the pin-compatible MC74ACT04MEL should be used instead.
What is the thermal performance of MC74AC04MEL in its SOEIAJ-14 package?
The MC74AC04MEL in SOEIAJ-14 has a junction-to-ambient thermal resistance (θJA) of approximately 120°C/W under standard JEDEC test conditions. At 24 mA output current per channel and 5.0 V supply, total power dissipation remains below 30 mW, keeping junction temperature well within the 140°C limit even at +85°C ambient.
Can MC74AC04MEL drive a 50 pF load at 50 MHz?
Yes - the MC74AC04MEL is characterized with 50 pF capacitive load and delivers 4.0 ns propagation delay at 5.0 V. While it can toggle at >100 MHz in short-line configurations, sustained 50 MHz square-wave loading requires attention to PCB trace impedance and grounding to avoid ringing; slew rate is not specified but typical rise/fall times are ~3 ns under those conditions.
Is MC74AC04MEL pin-compatible with MC74ACT04MEL?
Yes, MC74AC04MEL and MC74ACT04MEL share identical SOEIAJ-14 pinout and mechanical footprint (Case 965), including pin 1 location and lead pitch. However, they differ electrically: MC74ACT04MEL has TTL-compatible inputs (VIH = 2.0 V min @ VCC = 4.5 V), while MC74AC04MEL uses CMOS thresholds - substitution requires verification of input drive source compatibility.
MC74AC04MEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Circuits:
- -
- Number of Inputs:
- -
- Features:
- -
- Voltage - Supply:
- -
- Current - Quiescent (Max):
- -
- Current - Output High, Low:
- -
- Input Logic Level - Low:
- -
- Input Logic Level - High:
- -
- Max Propagation Delay @ V, Max CL:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MC74AC04MEL FAQ
1.How can I place an order for MC74AC04MEL through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74AC04MEL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC74AC04MEL reliable?
The price and inventory of MC74AC04MEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74AC04MEL is usually 5 days.
3.What payment methods are accepted for MC74AC04MEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74AC04MEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74AC04MEL?
MC74AC04MEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74AC04MEL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC74AC04MEL?
For technical support, including MC74AC04MEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74AC04MEL requirements.
6.How does Aetrix verify that MC74AC04MEL is sourced from the original manufacturer or authorized distributors?
All MC74AC04MEL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC74AC04MEL meets industry standards.
7.What is the process for return or replacement of MC74AC04MEL?
All MC74AC04MEL units undergo pre-shipment inspection (PSI). If there is an issue with MC74AC04MEL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC74AC04MEL part is unused and in its original packaging.
Return procedure for MC74AC04MEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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